Lesson 15: Part-Part-Whole Ratios | Unit 2: Introducing Ratios

Multiple Choice

What is the ratio of yellow paint to red paint?

• 1:4
• 3:2
• 2:3
• 4:1

Multiple Choice

We get orange paint my mixing red and yellow paint in the ratio of 3:2. How many total cups of orange paint will this mixture yield?

• 7
• 9

• 15

• 6

Multiple Choice

At the kennel, the ratio of cats to dogs is 4:5. There are 27 animals in all. Here is a tape diagram representing this ratio. What is the value of each small rectangle?

• 4
• 5
• 6
• 3

Multiple Choice

At the kennel, the ratio of cats to dogs is $$4:5$$ . There are 27 animals in all. How many dogs are at the kennel?

• 12
• 18
• 20
• 15

Multiple Choice

At the kennel, the ratio of cats to dogs is $$4:5$$ . There are 27 animals in all. How many cats are at the kennel?

• 10
• 15
• 8
• 12

Open Ended

Last month, there were 4 sunny days for every rainy day. If there were 30 days in the month, how many days were rainy? Explain your reasoning. If you get stuck, consider using a tape diagram.

Open Ended

Elena mixes 5 cups of apple juice with 2 cups of sparkling water to make sparkling apple juice. For a party, she wants to make 35 cups of sparkling apple juice. How much of each ingredient should Elena use? Explain or show your reasoning.

Multiple Choice

On a field trip, there are 3 chaperones for every 20 students. There are 92 people on the trip. How many chaperones are there?

• 8
• 15
• 12
• 10

Multiple Choice

On a field trip, there are 3 chaperones for every 20 students. There are 92 people on the trip. How many students are there?

• 60
• 90
• 80
• 70

Multiple Choice

From the information given, can you tell how many coins Jada has?

Jada has pennies and dimes. The ratio of Jada’s pennies to dimes is 2 to 3.

• 5x (where x is a positive integer)
• 10 coins
• 6x (where x is a positive integer)
• 4x (where x is a positive integer)